As someone else already said, I don't know NDPheasant personally to know how honest he is, but the fact that he has a vizsla in his profile pic makes me partial to him from the start... Unless you two had a standing wager or agreement that for every accidental hen one shoots, he owes the other x$, no payment necessary in my book. Accidents happen. Doesn't mean he isn't due some good natured harassment if he did shoot it by accident, though.
Also, maybe I am out of line or ignorant of the possible consequences here, but if I were to witness a hen strike a powerline and kill itself I don't think I'd just leave it laying there to rot. They eat too. If I were to get stopped by a warden, it would be simple to prove or disprove the cause of death by performing a necropsy (don't mean to nitpick, but this is the proper term for a post mortem analysis to determine the COD). Am I in the wrong here? Would a warden ticket you for having a hen in your possession if you did not shoot it?